1047779972280 has 128 divisors (see below), whose sum is σ = 3577785422400. Its totient is φ = 272593152000.

The previous prime is 1047779972227. The next prime is 1047779972311. The reversal of 1047779972280 is 822799777401.

1047779972280 is a `hidden beast` number, since 1 + 0 + 477 + 7 + 99 + 72 + 2 + 8 + 0 = 666.

It is a super-2 number, since 2×1047779972280² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11787021 + ... + 11875580.

Almost surely, 2^{1047779972280} is an apocalyptic number.

1047779972280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047779972280 is an abundant number, since it is smaller than the sum of its proper divisors (2530005450120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1047779972280 is a wasteful number, since it uses less digits than its factorization.

1047779972280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23662662 (or 23662652 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 1047779972280 in words is "one trillion, forty-seven billion, seven hundred seventy-nine million, nine hundred seventy-two thousand, two hundred eighty".